Just three short months ago, Apple was on a high as the most valuable company in the world.

But since Apple hit a peak of $232.07 a share on October 3, giving it a market cap of $1.12 trillion, it has dropped to $142.19 as of Thursday's close, wiping $446 billion from its value. Its market cap stood at $674.75 billion on Thursday.

To put that into context, that nearly $450 billion loss is significantly more than the market cap of Facebook, which is worth about $380 billion. It's also more than the gross domestic product of countries including Iran, Austria, and Norway.

This chart shows the three-month decline and says it all:

Macrotrends

The drop in valuation means Apple has lost its position as the world's third-most-valuable company to Alphabet, the parent company of Google.

In premarket trading, Apple was up 1.61% to $144.48 at the time of publication.